uselib.2, getfsent.3, regex.3, nsswitch.conf.5, inotify.7, man-pages.7, symlink.7: Replace uses of "e.g." in main text with "for example" or similar

Usual man-pages style is to use "e.g." only within
    parenthetical expressions.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

man2/uselib.2

@@ -71,8 +71,8 @@ The system limit on the total number of open files has been reached.
 .B ENOEXEC
 The file specified by
 .I library
-is not an executable of known type,
-e.g., does not have the correct magic numbers.
+is not an executable of a known type;
+for example, it does not have the correct magic numbers.
 .SH CONFORMING TO
 .BR uselib ()
 is Linux-specific, and should not be used in programs

man3/getfsent.3

@@ -114,8 +114,8 @@ Upon failure or end-of-file, these functions return NULL and 0, respectively.
 .\" function appeared in 4.0BSD; the other four functions appeared in 4.3BSD.
 .SH CONFORMING TO
 These functions are not in POSIX.1-2001.
-Several operating systems have them,
-e.g., *BSD, SunOS, Digital UNIX, AIX (which also has a
+Several operating systems have them, for example,
+*BSD, SunOS, Digital UNIX, AIX (which also has a
 .BR getfstype ()).
 HP-UX has functions of the same names,
 that however use a

man3/regex.3

@@ -289,7 +289,7 @@ Trailing backslash.
 Un-matched parenthesis group operators.
 .TP
 .B REG_ERANGE
-Invalid use of the range operator, e.g., the ending point of the range
+Invalid use of the range operator; for example, the ending point of the range
 occurs prior to the starting point.
 .TP
 .B REG_ESIZE

man5/nsswitch.conf.5

@@ -142,12 +142,12 @@ nis [NOTFOUND=return] files
 The first column is the database name.
 The remaining columns specify:
 .IP * 3
-One or more service specifications e.g., "files", "db", or "nis".
+One or more service specifications, for example, "files", "db", or "nis".
 The order of the services on the line determines the order in which
 those services will be queried, in turn, until a result is found.
 .IP *
 Optional actions to perform if a particular result is obtained
-from the preceding service, e.g., "[NOTFOUND=return]".
+from the preceding service, for example, "[NOTFOUND=return]".
 .LP
 The service specifications supported on your system depend on the
 presence of shared libraries, and are therefore extensible.

man7/inotify.7

@@ -191,8 +191,8 @@ field returned by
 File was accessed (read) (*).
 .TP
 .B IN_ATTRIB
-Metadata changed, e.g., permissions, timestamps, extended attributes,
-link count (since Linux 2.6.25), UID, GID, etc. (*).
+Metadata changed\(emfor example, permissions, timestamps, extended attributes,
+link count (since Linux 2.6.25), UID, or GID. (*).
 .TP
 .B IN_CLOSE_WRITE
 File opened for writing was closed (*).

man7/man-pages.7

@@ -500,8 +500,8 @@ in italic format, for example,
 .IR "man 7 man-pages" .
 In this case, it may be worth using nonbreaking spaces
 ("\e\ ") at suitable places in the command.
-Command options should be written in italics, e.g.,
-.IR \-l .
+Command options should be written in italics (e.g.,
+.IR \-l ).
 .PP
 Expressions, if not written on a separate indented line, should
 be specified in italics.

man7/symlink.7

@@ -220,7 +220,7 @@ would display the contents of the file
 .IR afile .
 
 It is important to realize that this rule includes commands which may
-optionally traverse file trees, e.g., the command
+optionally traverse file trees; for example, the command
 .I "chown file"
 is included in this rule, while the command
 .IR "chown\ \-R file" ,
@@ -228,11 +228,11 @@ which performs a tree traversal, is not.
 (The latter is described in the third area, below.)
 
 If it is explicitly intended that the command operate on the symbolic
-link instead of following the symbolic link, e.g., it is desired that
+link instead of following the symbolic link\(emfor example, it is desired that
 .I "chown slink"
 change the ownership of the file that
 .I slink
-is, whether it is a symbolic link or not, the
+is, whether it is a symbolic link or not\(emthe
 .I \-h
 option should be used.
 In the above example,